Watch-regulator



(No Model.)

c. R. KINBHAN. WATCHV REGULATOR.

Patented Nov. y8, 1881'.v

ATTDRNEYS.

UNITED STATES PATENT OFFICE.

CHARLES R. KINEHAN, OF SPRINGFIELD,ILLINOIS.

WATCH- REGU LATO R.

SPECIFICATION forming part of Letters Patent No. 249,367, dated November8, 1881.

Application filed April 6, 1881. (No model.)

To all whom it may concern Be it known that I, GHARLEs R. KINEEAN, ofSpringfield, in the county of Saugamon and State of Illinois, haveinvented a new and use- -ful Improvement in Watch Regulators, of

which the following is a specification.

My invention relates to mechanism for facilitating the adjustment of thebalance or hair spring by the watch-maker before the watch is exposedfor sale.'

The invention consists in a novel construction, combination, andarrangement with relation to each other of the cock, the-regulator, thehair-spring, a plate for carrying the stud, and other devices, wherebythe adjustment of the balance-spring and the timing7 of the watch by themaker is accomplished. with less expenditure of time and labor than bythe methods heretofore employed.

In the accompanying drawings, Figure l is a topview of my invention.Fig. 2 is a transverse vertical section taken in the line ac x, Fig. l.Fig. 3 is a view ofthe lower side of the stu dcarrying plate, showingthe mode of attaching the spring to the stud.

A is the balance-wheel, having one end of its staff a journaled in theusual manner in a plate of the watch, and the other in the cock E.

B is the balance-spring or hair-spring, attached at its inner end, inany suitable manner, to the staff or arbor a of the balance-wheel. ltsouter end is attached to the stud C by being passed through a slot, c2,in said stud, and secured by a wedge'or key, c3. The stud is inserted inthe stud-bearing plate D, and secured by a set-screw, c4, or in anyother suitable manner. The stud-bearin g plate D is connected to thecock in the following manner:

Attached to or made in one piece with the cock is av circular plate, e,the diameter of the lower face of which is less than that of the upper,the sides of the plate being inclined at an angle of about teu degreesfrom a vertical line.

The inner end of the stud-bearing plate D is a mutilated circle, d, theinside bearingsurface of which is also inclined at an angle of about tendegrees from avertical line, so as to be exactly parallel with ltheinclined bearing-surface of the plate e. When the studbearing plate D islaid exactly over the plate e and pressed down the mutilated circle dsprings over the upper and larger portion of said plate e, which thenholds it securely in place, allowing, however, a rotary motion whensufficient force is applied to the outer end of the plate D.

The regulator F is provided with curb-pins b, in the usual manner. Itsinner end is a mutilated circle, f, having the inside bearing-surfaceinclined similar to the 011e above described; but as it occupies aposition above the plate D, and consequently on a larger part oftheplate e, the circlef is slightly larger in diameter than the circle d.

The method heretofore employed for timing the watch by the workmanbefore exposing it for sale is as follows: The balance-wheel is weighed,and a suitable spring is selected and gaged and attached in place. Thewheel is then set in motion and compared with a vibrating standardbalance wheel and spring, and if any discrepancy is observed in thevibrations the. hair-sprin g is loosened in the stud and eitherlengthened or shortened as muchas is necessary to cause the vibrationsto conform to the standard as nearly as can be judged by the eye. Thewatch is then allowed to vrun for about fifteen hours, and if at the endof that time it is discovered to be either fast or slow the sprin g isagain adjusted. It is frequently necessary to repeat this operationseveral times. It sometimes occurs that in readjusting the spring itbecomes out of true,77 and requires to be entirely removed and trued andthen replaced.

By means of my invention the workman causes the vibrations to conform tothe standard by moving the stud-carrying plate D inthe proper directionfor lengthening or shortening the spring, and consequently thevibrations.

Another advantage in my invention is that as the plate D has for itscenter of motion a point directly over the staff of the balancewheelthere is no tendency to get the spring out of true in moving the plate,and as the stud C has its shank round instead of' angular circle ends (lf, with their inner surfaces conitis more easily adjusted in its seat,so as to inverging upward for engagement with said plate sure the trueposition of the spring. c, substantially as and for the purpose de-Having thus described my inventiomclaim scribed. as new and desiretosecure by Letters Patent- 5 In awatch-regulator, the combination of theCHARLES R KINEHAN' plate e, having its sides converging down-XVitnesses: Wardly, and attached to or made in one piece C. WOLF, with acock, E, of a stud-carrying plate, D, and H. B. MILLER.

1o a regulator, F, having, respectively, mutilated

